


Offshore Forecast
Issued by NWS
Issued by NWS
174 FZNT22 KWBC 200903 OFFNT2 Offshore Waters Forecast NWS Ocean Prediction Center Washington DC 503 AM EDT Wed Aug 20 2025 West central North Atlantic continental shelf and slope waters beyond 20 nm to 250 nm offshore, including south of Georges Bank from 1000 fm to 250 nm offshore. Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. Locally higher winds and seas can be expected in and near tstms. ANZ899-202015- 503 AM EDT Wed Aug 20 2025 .SYNOPSIS FOR MID ATLC WATERS...Outer rain bands from Hurricane Erin will continue moving N through the S waters today. The center of Hurricane Erin is expected to move N into the outer S waters late this afternoon, then continue N and NE through the outer S and central waters tonight and Thu. It will then turn more NE and move through the Outer Mid- Atlantic Waters Thu night through Fri night. Significant S to SE swell today will continue through Fri night while gradually backing to the E. Another high pressure area will build over the waters Fri night through Sat night while a stationary front forms over the far S waters. A weak area of low pressure will form along the front off the South Carolina coast Sat night, then lift NE through the central waters Sun into Sun night while the area of high pressure to the N shifts E of the region. A cold front will approach the area from the W late Sun night. For more information on Hurricane Erin, please closely monitor the latest forecasts from the National Hurricane Center. $$ ANZ820-202015- Hudson Canyon to Baltimore Canyon to 1000 FM- 503 AM EDT Wed Aug 20 2025 ...TROPICAL STORM WARNING... .TODAY...E to SE winds 10 to 15 kt. Seas 7 to 11 ft. .TONIGHT...E to NE winds 15 to 25 kt. Seas 10 to 16 ft. Scattered showers and tstms. .THU...NE winds 25 to 30 kt, becoming 25 to 35 kt. Seas 14 to 24 ft. Showers and tstms. .THU NIGHT...N winds 25 to 35 kt. Seas 14 to 24 ft. .FRI...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas 11 to 19 ft. .FRI NIGHT...Variable winds 5 to 15 kt, becoming S to SW. Seas 8 to 13 ft. .SAT...S to SE winds less than 10 kt, increasing to 10 to 15 kt. Seas 6 to 10 ft. .SAT NIGHT...S to SE winds 10 to 15 kt. Seas 4 to 8 ft. .SUN...S winds 10 to 15 kt. Seas 4 to 7 ft. .SUN NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 3 to 6 ft. $$ ANZ915-202015- Between 1000FM and 38.5 N west of 69 W- 503 AM EDT Wed Aug 20 2025 ...TROPICAL STORM WARNING... .TODAY...E winds 10 to 15 kt, becoming 10 to 20 kt. Seas 9 to 11 ft. .TONIGHT...E winds 15 to 25 kt. Seas 10 to 15 ft. Scattered showers and tstms. .THU...E winds 20 to 30 kt, becoming E to NE 30 to 40 kt. Seas 15 to 25 ft. Showers and tstms with vsby 1 nm or less. .THU NIGHT...NE winds 40 to 55 kt, becoming N 40 to 50 kt. Seas 20 to 35 ft. Showers and tstms with vsby 1 nm or less. .FRI...N winds 30 to 40 kt, diminishing to 20 to 30 kt. Seas 15 to 30 ft. .FRI NIGHT...N to NE winds 10 to 20 kt, diminishing to less than 10 kt. Seas 11 to 19 ft. .SAT...E to NE winds less than 10 kt, becoming E to SE. Seas 8 to 13 ft. .SAT NIGHT...S to SE winds 10 to 15 kt. Seas 7 to 10 ft. .SUN...S to SE winds 5 to 10 kt, becoming S 10 to 15 kt. Seas 6 to 9 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft. $$ ANZ920-202015- Baltimore Canyon to 69W east of 1000 FM and south of 38.5N to 250 NM offshore- 503 AM EDT Wed Aug 20 2025 ...HURRICANE WARNING... .TODAY...E winds 10 to 15 kt, becoming 10 to 20 kt, then, becoming SE. Seas 10 to 13 ft. Scattered showers and tstms. .TONIGHT...E to SE winds 15 to 25 kt, becoming E 25 to 35 kt. Seas 11 to 19 ft. Showers and tstms. .THU...E winds 45 to 55 kt, becoming E to NE 70 to 85 kt. Seas 15 to 30 ft, building to 25 to 40 ft. Showers and tstms with vsby 1 nm or less. .THU NIGHT...N to NE winds 65 to 85 kt, becoming N to NW 45 to 60 kt. Seas 30 to 45 ft. Showers and tstms with vsby 1 nm or less. .FRI...N to NW winds 30 to 40 kt, becoming N 20 to 30 kt. Seas 16 to 31 ft. .FRI NIGHT...N to NE winds 10 to 20 kt, becoming NE 5 to 15 kt. Seas 11 to 19 ft. .SAT...E to NE winds 5 to 15 kt. Seas 8 to 14 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 7 to 11 ft. .SUN...S to SE winds 10 to 15 kt. Seas 6 to 9 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft. $$ ANZ905-202015- East of 69W to the Hague Line between 1000 FM and 39N- 503 AM EDT Wed Aug 20 2025 ...HURRICANE WARNING... .TODAY...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 7 to 11 ft. .TONIGHT...E winds 15 to 25 kt. Seas 8 to 12 ft. Scattered tstms with vsby 1 nm or less. .THU...E winds 15 to 25 kt, increasing to 25 to 35 kt. Seas 12 to 20 ft. Showers and tstms with vsby 1 nm or less. .THU NIGHT...E winds 40 to 50 kt, becoming E to NE 55 to 70 kt. Seas 14 to 28 ft, building to 21 to 36 ft. Showers and tstms with vsby 1 nm or less. .FRI...N to NE winds 60 to 75 kt, becoming N 40 to 55 kt. Seas 25 to 40 ft. .FRI NIGHT...N winds 25 to 35 kt, diminishing to 15 to 25 kt. Seas 17 to 32 ft. .SAT...N to NE winds 5 to 15 kt, becoming E to NE 5 to 10 kt. Seas 11 to 19 ft. .SAT NIGHT...SE winds 5 to 10 kt. Seas 8 to 13 ft. .SUN...E to SE winds 5 to 15 kt. Seas 7 to 11 ft. .SUN NIGHT...S to SE winds 10 to 15 kt. Seas 6 to 8 ft. $$ ANZ910-202015- East of 69W and south of 39N to 250 NM offshore- 503 AM EDT Wed Aug 20 2025 ...HURRICANE WARNING... .TODAY...E winds 10 to 15 kt, becoming E to SE 10 to 20 kt. Seas 9 to 12 ft. Scattered tstms. .TONIGHT...E to SE winds 15 to 25 kt. Seas 9 to 15 ft. Scattered showers and tstms with vsby 1 nm or less. .THU...E winds 30 to 40 kt, increasing to 50 to 65 kt. Seas 13 to 21 ft, building to 21 to 36 ft. Showers and tstms with vsby 1 nm or less. .THU NIGHT...E to NE winds 65 to 85 kt. Seas 31 to 46 ft. Showers and tstms with vsby 1 nm or less. .FRI...N to NW winds 60 to 75 kt, becoming NW 40 to 50 kt. Seas 25 to 40 ft. .FRI NIGHT...N winds 20 to 30 kt. Seas 14 to 29 ft. .SAT...NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas 11 to 18 ft. .SAT NIGHT...E to SE winds 5 to 10 kt. Seas 9 to 13 ft. .SUN...E to SE winds 5 to 15 kt. Seas 8 to 10 ft. .SUN NIGHT...S winds 10 to 15 kt, becoming 10 to 20 kt. Seas 7 to 8 ft. $$ ANZ825-202015- Baltimore Canyon to Cape Charles Light to 100 NM offshore- 503 AM EDT Wed Aug 20 2025 ...TROPICAL STORM WARNING... .TODAY...E to SE winds 5 to 15 kt. Seas 8 to 13 ft. Scattered showers and tstms. .TONIGHT...E winds 15 to 25 kt, becoming NE 20 to 30 kt. Seas 12 to 20 ft. Scattered showers and tstms. .THU...NE winds 25 to 35 kt, becoming N 30 to 35 kt. Seas 14 to 24 ft. Showers and tstms. .THU NIGHT...N winds 25 to 35 kt, diminishing to 20 to 30 kt. Seas 14 to 24 ft. .FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 10 to 17 ft. .FRI NIGHT...E to NE winds 5 to 15 kt, becoming E 5 to 10 kt. Seas 7 to 13 ft. .SAT...E winds 5 to 10 kt, becoming SE. Seas 6 to 11 ft. .SAT NIGHT...SE winds 10 to 15 kt, becoming S 5 to 10 kt. Seas 5 to 9 ft. .SUN...S winds 5 to 10 kt. Seas 5 to 7 ft. .SUN NIGHT...S to SW winds 5 to 10 kt. Seas 4 to 7 ft. $$ ANZ828-202015- Cape Charles Light to Currituck Beach Light to 100 NM offshore- 503 AM EDT Wed Aug 20 2025 ...TROPICAL STORM WARNING... .TODAY...E winds 5 to 15 kt, increasing to 15 to 25 kt. Seas 9 to 16 ft. Scattered showers and tstms. .TONIGHT...E winds 25 to 35 kt, becoming NE 30 to 40 kt. Seas 13 to 20 ft, building to 17 to 27 ft. Showers and tstms. .THU...N to NE winds 30 to 40 kt. Seas 15 to 30 ft. Showers and tstms. .THU NIGHT...N winds 25 to 35 kt, diminishing to 20 to 30 kt. Seas 14 to 23 ft. .FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 10 to 17 ft. .FRI NIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas 7 to 12 ft. .SAT...E winds 5 to 10 kt. Seas 6 to 11 ft. .SAT NIGHT...SE winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 5 to 9 ft. .SUN...SE winds 5 to 10 kt. Seas 4 to 8 ft. .SUN NIGHT...S to SW winds 5 to 10 kt. Seas 4 to 8 ft. $$ ANZ925-202015- Baltimore Canyon to Hatteras Canyon between 100 NM and 250 NM offshore- 503 AM EDT Wed Aug 20 2025 ...HURRICANE WARNING... .TODAY...E winds 20 to 30 kt. Seas 13 to 22 ft. Scattered showers and tstms. .TONIGHT...E winds 35 to 45 kt, becoming E to SE 55 to 70 kt. Seas 16 to 26 ft, building to 30 to 45 ft. Showers and tstms with vsby 1 nm or less. .THU...S to SE winds 80 to 95 kt, becoming W to SW 75 to 90 kt. Seas 40 to 55 ft. Showers and tstms with vsby 1 nm or less. .THU NIGHT...NW winds 55 to 70 kt, becoming N to NW 30 to 40 kt. Seas 25 to 40 ft. Scattered showers and tstms. .FRI...N winds 20 to 30 kt. Seas 15 to 25 ft. .FRI NIGHT...N to NE winds 10 to 20 kt, becoming NE 5 to 15 kt. Seas 10 to 17 ft. .SAT...E winds 5 to 15 kt. Seas 8 to 13 ft. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 7 to 10 ft. .SUN...S to SE winds 10 to 15 kt. Seas 6 to 9 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft. $$ ANZ830-202015- Currituck Beach Light to Cape Hatteras to 100 NM offshore- 503 AM EDT Wed Aug 20 2025 ...TROPICAL STORM WARNING... .TODAY...E winds 15 to 25 kt, increasing to 25 to 35 kt. Seas 13 to 21 ft. Scattered showers and tstms. .TONIGHT...E to NE winds 30 to 40 kt, becoming N to NE 35 to 45 kt. Seas 18 to 33 ft. Showers and tstms with vsby 1 nm or less. .THU...N winds 35 to 45 kt. Seas 18 to 33 ft. Showers and tstms. .THU NIGHT...N winds 25 to 35 kt, diminishing to 20 to 25 kt. Seas 13 to 22 ft. .FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 10 to 17 ft. .FRI NIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas 8 to 12 ft. .SAT...E winds 5 to 10 kt. Seas 7 to 11 ft. .SAT NIGHT...SE winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 6 to 9 ft. .SUN...SE winds 5 to 10 kt. Seas 5 to 8 ft. .SUN NIGHT...S to SW winds 5 to 10 kt. Seas 5 to 8 ft. $$ ANZ833-202015- Cape Hatteras to Cape Fear to 100 NM Offshore.- 503 AM EDT Wed Aug 20 2025 ...TROPICAL STORM WARNING... .TODAY...E to NE winds 10 to 20 kt, increasing to 25 to 35 kt. Seas 10 to 18 ft, building to 15 to 25 ft. Showers and tstms. .TONIGHT...NE winds 30 to 40 kt, becoming N 35 to 45 kt. Seas 19 to 34 ft. Showers and tstms with vsby 1 nm or less. .THU...N to NW winds 35 to 45 kt. Seas 17 to 32 ft. Showers and tstms with vsby 1 nm or less. .THU NIGHT...N winds 20 to 30 kt. Seas 12 to 20 ft. Scattered showers and tstms. .FRI...N winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 9 to 16 ft. .FRI NIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas 7 to 12 ft. .SAT...E winds 5 to 10 kt. Seas 6 to 10 ft. .SAT NIGHT...E to SE winds 10 to 15 kt, becoming SE 5 to 10 kt. Seas 5 to 9 ft. .SUN...SE winds 5 to 10 kt. Seas 4 to 8 ft. .SUN NIGHT...S winds 5 to 10 kt, becoming SW. Seas 4 to 7 ft. $$ ANZ930-202015- Hatteras Canyon to Cape Fear between 100 NM and 250 NM offshore- 503 AM EDT Wed Aug 20 2025 ...HURRICANE WARNING... .TODAY...E winds 20 to 30 kt, increasing to 45 to 60 kt. Seas 13 to 19 ft, building to 22 to 37 ft. Showers and tstms with vsby 1 nm or less. .TONIGHT...E to SE winds 80 to 95 kt, becoming S to SE. Seas 41 to 56 ft. Showers and tstms with vsby 1 nm or less. .THU...S to SW winds 80 to 95 kt, becoming W 45 to 60 kt. Seas 40 to 55 ft, subsiding to 28 to 43 ft. Showers and tstms with vsby 1 nm or less. .THU NIGHT...W to NW winds 30 to 40 kt, becoming N to NW 20 to 30 kt. Seas 14 to 29 ft. Scattered showers and tstms. .FRI...N to NW winds 10 to 20 kt. Seas 12 to 20 ft. .FRI NIGHT...N to NE winds 10 to 15 kt, becoming NE 5 to 10 kt. Seas 10 to 15 ft. .SAT...E winds 5 to 10 kt. Seas 8 to 12 ft. .SAT NIGHT...E to SE winds 10 to 15 kt, becoming SE 5 to 10 kt. Seas 8 to 10 ft. .SUN...SE winds 5 to 10 kt, becoming S. Seas 7 to 9 ft. .SUN NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft. $$ ANZ835-202015- Cape Fear to 31N to 1000 FM- 503 AM EDT Wed Aug 20 2025 ...TROPICAL STORM WARNING... .TODAY...NE winds 20 to 30 kt, becoming N to NE 25 to 35 kt. Seas 16 to 26 ft. Showers and tstms with vsby 1 nm or less. .TONIGHT...N to NW winds 25 to 35 kt. Seas 18 to 29 ft. Scattered showers and tstms. .THU...NW winds 25 to 35 kt, diminishing to 15 to 25 kt. Seas 14 to 24 ft. Showers and tstms. .THU NIGHT...N winds 10 to 20 kt, becoming N to NE 5 to 15 kt. Seas 9 to 15 ft. Scattered showers and tstms. .FRI...E to NE winds 5 to 15 kt. Seas 8 to 12 ft. .FRI NIGHT...E winds 5 to 15 kt. Seas 6 to 10 ft. .SAT...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 5 to 9 ft. .SAT NIGHT...E to SE winds 5 to 15 kt, becoming SE. Seas 5 to 8 ft. .SUN...E to SE winds less than 10 kt, becoming variable. Seas 4 to 8 ft. .SUN NIGHT...S to SW winds less than 10 kt, becoming W to SW. Seas 4 to 7 ft. $$ ANZ935-202015- Cape Fear to 31N east of 1000 FM to 250 NM offshore- 503 AM EDT Wed Aug 20 2025 ...HURRICANE WARNING... .TODAY...E to NE winds 30 to 40 kt, increasing to 75 to 90 kt. Seas 15 to 25 ft, building to 32 to 47 ft. Showers and tstms with vsby 1 nm or less. .TONIGHT...E to SE winds 75 to 90 kt, becoming W 60 to 75 kt. Seas 35 to 50 ft. Showers and tstms with vsby 1 nm or less. .THU...W to NW winds 35 to 45 kt. Seas 18 to 33 ft, subsiding to 15 to 24 ft. Showers and tstms. .THU NIGHT...N to NW winds 15 to 25 kt. Seas 11 to 19 ft. Scattered showers and tstms. .FRI...N to NE winds 5 to 15 kt, becoming 5 to 10 kt. Seas 8 to 14 ft. .FRI NIGHT...E to NE winds 10 to 15 kt. Seas 8 to 12 ft. .SAT...E winds 5 to 15 kt. Seas 7 to 10 ft. .SAT NIGHT...E to SE winds 5 to 15 kt, becoming SE 5 to 10 kt. Seas 7 to 9 ft. .SUN...S to SE winds 5 to 10 kt, becoming S 5 to 15 kt. Seas 7 to 8 ft. .SUN NIGHT...S winds 10 to 15 kt, becoming SW. Seas 6 to 7 ft. $$ .Forecaster Connelly. Ocean Prediction Center.